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Hunting Dependencies: Using Bow-Tie for Combined Analysis of Power and Cyber Security

Abstract

Modern electric power systems are complex cyber-physical systems. The integration of traditional power and digital technologies result in interdependencies that need to be considered in risk analysis. In this paper we argue the need for analysis methods that can combine the competencies of various experts in a common analysis focusing on the overall system perspective. We report on our experiences on using the Vulnerability Analysis Framework (VAF) and bow-tie diagrams in a combined analysis of the power and cyber security aspects in a realistic case. Our experiences show that an extended version of VAF with increased support for interdependencies is promising for this type of analysis.

Category

Academic chapter/article/Conference paper

Client

  • Research Council of Norway (RCN) / 257626

Language

English

Author(s)

Affiliation

  • SINTEF Digital / Software Engineering, Safety and Security
  • SINTEF Energy Research / Energisystemer
  • Diverse norske bedrifter og organisasjoner

Year

2021

Publisher

IEEE

Book

2020 2nd International Conference on Societal Automation (SA)

ISBN

978-1-7281-9690-9

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